Latest Tested SSL/TLS Servers

Free API

High-Tech Bridge provides you with a free API to test your SSL/TLS servers. To assure high speed of service and availability for everyone, the free API allows 20 requests in 3 minutes, 250 requests in total per 24 hours, from one IP address.

In order to prevent abuse, a protection mechanism has been set up to remove the ability to test IPs that are not related to the tested domain name. As a consequence if a domain name is resolved into several IPs, a second request will be mandatory, specifying one of the IPs replied by the server along with the token issued (examples are below). However, if the tested domain name can be resolved into only one IP address, it will be immediately tested.

License notice: The API is provided for free both for private and commercial purposes. If you use the API for publicly available service (commercial or not) a link to High-Tech Bridge's Free SSL Server Test is mandatory.

Unlimited API

High-Tech Bridge provides a commercial access to the SSLScan API without restrictions. Tailored for your needs, restrictions of the free API can be partially or entirely removed. Prices start at 200 USD per month.

System Messages

Message Name

Response

multiple_mxes

Result is associative array of hostnames with list of IPs - eg. {"multiple_mxes":{"ASPMX2.GOOGLEMAIL.COM":["64.233.164.26"],"alt2.aspmx.l.google.com":["74.125.68.27"],"ASPMX3.GOOGLEMAIL.COM":["74.125.68.26"]}, "token": "68j3OCZLEomtjASxKoObjZXzX7p2M7L0"}

multiple_ips

Result is list of IPs - eg. {"multiple_ips":["67.205.108.218","67.205.102.121"], "token": "68j3OCZLEomtjASxKoObjZXzX7p2M7L0"}

error

The domain name cannot be resolved

error

An error has occurred while checking DNS records of domain

error

Invalid IP address

error

Error with token. Our API has changed, please take look at documentation.

error

Sorry, your API key is invalid or has expired. Please double-check it or contact us

error

You have performed N tests in the last 3 minutes. The system is currently busy, please try again a bit later.

error

You have performed N tests in the last 24 hours. The system is currently busy, please try again a bit later.

error

Sorry, our systems are very busy now, we are working on the issue. Please try again in a few minutes.

error

You have reached the limit of N concurring running tests. Please wait until at least one of them is finished.

error

An error occured while testing server configuration, server become unreachable during the test.

Example of Server Response

About the Service

ImmuniWeb® SSLScan is a free product available online, provided and operated by High-Tech Bridge.

The new version of the service enables companies to easily test any SSL/TLS-based services for compliance with PCI DSS, HIPAA and NIST, while the new API provides much more flexibility for software developers.

In December 2015, we conducted a research on SSL/TLS encryption of the largest public email service providers that helped several large companies to improve the quality and reliability of their email servers SSL/TLS encryption.